psoralen

noun
pso·​ra·​len | \ ˈsȯr-ə-lən How to pronounce psoralen (audio) \

Definition of psoralen

: a substance C11H6O3 found in some plants that photosensitizes mammalian skin and is used in conjunction with ultraviolet light to treat psoriasis also : any of various derivatives of psoralen having similar properties

Examples of psoralen in a Sentence

Recent Examples on the Web There are several different types of phototherapy—including narrowband UVB, broadband UVB, targeted UVB [excimer laser or light], and UVA with psoralens (topical, oral, or bath)—and all of them involve exposing the skin to light. Jenna Birch, SELF, "How to Find the Right Psoriasis Treatment for Your Symptoms," 28 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psoralen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of psoralen

1933, in the meaning defined above

History and Etymology for psoralen

New Latin Psoralea, genus of plants from which it is isolated + English -en, alteration of -ene

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Time Traveler for psoralen

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The first known use of psoralen was in 1933

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Cite this Entry

“Psoralen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psoralen. Accessed 10 Jul. 2020.

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More Definitions for psoralen

psoralen

noun
pso·​ra·​len | \ ˈsȯr-ə-lən How to pronounce psoralen (audio) \

Medical Definition of psoralen

: a substance C11H6O3 found in some plants that photosensitizes mammalian skin and is used in conjunction with ultraviolet light to treat psoriasis also : any of various derivatives of psoralen having similar properties — see puva

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